Theorem zringabl

Description: The ring of integers is an (additive) abelian group. (Contributed by AV, 13-Jun-2019)

	Ref	Expression
Assertion	zringabl	⊢ ℤring ∈ Abel

Proof

Step	Hyp	Ref	Expression
1		zringring	⊢ ℤring ∈ Ring
2		ringabl	⊢ ( ℤring ∈ Ring → ℤring ∈ Abel )
3	1 2	ax-mp	⊢ ℤring ∈ Abel